1328172859998 has 48 divisors (see below), whose sum is σ = 3047214109680. Its totient is φ = 416650322688.

The previous prime is 1328172859997. The next prime is 1328172860029. The reversal of 1328172859998 is 8999582718231.

1328172859998 is a `hidden beast` number, since 1 + 3 + 2 + 8 + 1 + 7 + 28 + 599 + 9 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328172859997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4089973 + ... + 4402751.

It is an arithmetic number, because the mean of its divisors is an integer number (63483627285).

Almost surely, 2^{1328172859998} is an apocalyptic number.

1328172859998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1328172859998 is an abundant number, since it is smaller than the sum of its proper divisors (1719041249682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1328172859998 is a wasteful number, since it uses less digits than its factorization.

1328172859998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326681 (or 326678 counting only the distinct ones).

The product of its digits is 156764160, while the sum is 72.

The spelling of 1328172859998 in words is "one trillion, three hundred twenty-eight billion, one hundred seventy-two million, eight hundred fifty-nine thousand, nine hundred ninety-eight".